I'm actually having the same problem on both of my sites (although It's worse on temp.lumalogs.com/wordpress2).
The problem is that on all 3 of my Android mobile phones I get a white horizontal line of empty space on the right hand side of the page. And I have to zoom in in order to see the content... My friends (that are helping me proof the sites) have mentioned to me (and I agree) that this is annoying.
I think I should mention that all 3 of my mobile devices are LG's but I did check out my sites using 4 different browsers on each device, and the sites all look the same...
I also checked my sites using a Samsung tablet and all looks good, besides that I checed the responsiveness and adaptiveness using chome, edge and firefox on my PC and there is no problem.
Thank you in advance.